package com.menhai.personmanagement.plus;

import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import cn.hutool.json.JSON;
import cn.hutool.json.JSONObject;
import com.menhai.personmanagement.entity.SysOperate;
import com.menhai.personmanagement.services.ISysOperateService;
import com.menhai.personmanagement.utils.UuidUtil;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;


/**
 * 切面处理类，操作日志异常日志记录处理
 *
 * @author
 * @date 2019/03/21
 */
@Aspect
@Component
public class OperLogAspect {


    @Autowired
    private ISysOperateService sysOperateService;


    /**
     * 设置操作日志切入点 记录操作日志 在注解的位置切入代码
     */
    @Pointcut("@annotation(com.menhai.personmanagement.plus.OperLog)")
    public void operLogPoinCut() {
    }

    /**
     * 设置操作异常切入点记录异常日志 扫描所有controller包下操作
     */
    @Pointcut("execution(* com.menhai.personmanagement.controller..*.*(..))")
    public void operExceptionLogPoinCut() {
    }

    /**
     * 正常返回通知，拦截用户操作日志，连接点正常执行完成后执行， 如果连接点抛出异常，则不会执行
     *
     * @param joinPoint 切入点
     * @param keys      返回结果
     */
    @AfterReturning(value = "operLogPoinCut()", returning = "keys")
    public void saveOperLog(JoinPoint joinPoint, Object keys) {
        // 获取RequestAttributes
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        // 从获取RequestAttributes中获取HttpServletRequest的信息
        HttpServletRequest request = (HttpServletRequest) requestAttributes
                .resolveReference(RequestAttributes.REFERENCE_REQUEST);


        try {

            // 从切面织入点处通过反射机制获取织入点处的方法
            MethodSignature signature = (MethodSignature) joinPoint.getSignature();
            // 获取切入点所在的方法
            Method method = signature.getMethod();
            // 获取操作
            OperLog opLog = method.getAnnotation(OperLog.class);

            // 获取请求的类名
            String className = joinPoint.getTarget().getClass().getName();
            // 获取请求的方法名
            String methodName = method.getName();
            methodName = className + "." + methodName;

            // 请求的参数
            Map<String, String> rtnMap = converMap(request.getParameterMap());

            if (opLog != null) {
                String operType = opLog.operType();
                String operDesc = opLog.operDesc();
                SysOperate operate = new SysOperate();
                operate.setOperateid(UuidUtil.uuid());
                operate.setCurrUser(request.getHeader("userid"));
                operate.setManipulate(operType);
                operate.setLevel(request.getHeader("level"));
                SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                operate.setCreatetime(format.format(new Date()));
                operate.setStatus("操作成功");
                operate.setOperatecontent(operDesc);
                operate.setDetail(methodName+rtnMap);
                sysOperateService.addInfo(operate);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 异常返回通知，用于拦截异常日志信息 连接点抛出异常后执行
     *
     * @param joinPoint 切入点
     * @param e         异常信息
     */
//    @AfterThrowing(pointcut = "operExceptionLogPoinCut()", throwing = "e")
//    public void saveExceptionLog(JoinPoint joinPoint, Throwable e) {
//        // 获取RequestAttributes
//        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
//        // 从获取RequestAttributes中获取HttpServletRequest的信息
//        HttpServletRequest request = (HttpServletRequest) requestAttributes
//                .resolveReference(RequestAttributes.REFERENCE_REQUEST);
//
//        ExceptionLog excepLog = new ExceptionLog();
//        try {
//            // 从切面织入点处通过反射机制获取织入点处的方法
//            MethodSignature signature = (MethodSignature) joinPoint.getSignature();
//            // 获取切入点所在的方法
//            Method method = signature.getMethod();
//            excepLog.setExcId(UuidUtil.get32UUID());
//            // 获取请求的类名
//            String className = joinPoint.getTarget().getClass().getName();
//            // 获取请求的方法名
//            String methodName = method.getName();
//            methodName = className + "." + methodName;
//            // 请求的参数
//            Map<String, String> rtnMap = converMap(request.getParameterMap());
//            // 将参数所在的数组转换成json
//            String params = JSON.toJSONString(rtnMap);
//            excepLog.setExcRequParam(params); // 请求参数
//            excepLog.setOperMethod(methodName); // 请求方法名
//            excepLog.setExcName(e.getClass().getName()); // 异常名称
//            excepLog.setExcMessage(stackTraceToString(e.getClass().getName(), e.getMessage(), e.getStackTrace())); // 异常信息
//            excepLog.setOperUserId(UserShiroUtil.getCurrentUserLoginName()); // 操作员ID
//            excepLog.setOperUserName(UserShiroUtil.getCurrentUserName()); // 操作员名称
//            excepLog.setOperUri(request.getRequestURI()); // 操作URI
//            excepLog.setOperIp(IPUtil.getRemortIP(request)); // 操作员IP
//            excepLog.setOperVer(operVer); // 操作版本号
//            excepLog.setOperCreateTime(new Date()); // 发生异常时间
//
//            exceptionLogService.insert(excepLog);
//
//        } catch (Exception e2) {
//            e2.printStackTrace();
//        }
//
//    }

    /**
     * 转换request 请求参数
     *
     * @param paramMap request获取的参数数组
     */
    public Map<String, String> converMap(Map<String, String[]> paramMap) {
        Map<String, String> rtnMap = new HashMap<String, String>();
        for (String key : paramMap.keySet()) {
            rtnMap.put(key, paramMap.get(key)[0]);
        }
        return rtnMap;
    }

    /**
     * 转换异常信息为字符串
     *
     * @param exceptionName    异常名称
     * @param exceptionMessage 异常信息
     * @param elements         堆栈信息
     */
    public String stackTraceToString(String exceptionName, String exceptionMessage, StackTraceElement[] elements) {
        StringBuffer strbuff = new StringBuffer();
        for (StackTraceElement stet : elements) {
            strbuff.append(stet + "\n");
        }
        String message = exceptionName + ":" + exceptionMessage + "\n\t" + strbuff.toString();
        return message;
    }
}